White Willow Bark P.E Product Name: Salix peel extract; Salicin Alias: salicin; salicylic alcohol; salicin; salicin; salicin; CAS No. 138-52-3 Product specifications: 15%, 25%, 50%, 98% Detection method: HPLC Molecular formula: C13H18O7 Molecular weight: 286.2778 Physical properties: Melting point 199-202 C, soluble in water, soluble in alkali, pyridine and glacial acetic acid, slightly soluble in methanol, ethanol, ethyl acetate, insoluble in ether, chloroform, benzene and petroleum ether. Product characteristics: white powder. Packaging instructions: 1-5 kg inner self-sealing bags, outer aluminum foil bags, more than 5 kg inner double plastic bags, outer cardboard drum packaging. Storage Conditions: Store in a cool and dry place, do not freeze, away from strong light and high temperature. Shelf life: 24 months